🐾 PawSafe Check

Is Melatonin Toxic to Pets?

Yes — melatonin is mildly toxic to cats. Yes — melatonin is mildly toxic to dogs.

CatsMildly toxicIs melatonin toxic to cats? →DogsMildly toxicIs melatonin toxic to dogs? →

PawSafe Check is for general information only and is not veterinary advice. Always contact your veterinarian or a poison control service if you think your pet has been exposed.

Toxic compound
Melatonin; xylitol in some products
Toxic parts
Gummies, tablets

Symptoms

Cats (mildly toxic)

  • Sleepiness
  • Vomiting
  • Diarrhea

Dogs (mildly toxic)

  • Sleepiness
  • Vomiting
  • Diarrhea

What to do

If your cat ate melatonin

  • Remove any plant material from your cat's mouth and keep it out of reach.
  • Gently rinse the mouth and offer fresh water.
  • Call your vet if symptoms persist, get worse, or your cat is small, young or elderly.

If your dog ate melatonin

  • Remove any plant material from your dog's mouth and keep it out of reach.
  • Gently rinse the mouth and offer fresh water.
  • Call your vet if symptoms persist, get worse, or your dog is small, young or elderly.

Good to know

Melatonin itself is fairly low risk, but some gummies and chewables contain xylitol. Large amounts can cause sleepiness and stomach upset.

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Frequently asked questions

Is melatonin toxic to cats?

Yes — melatonin is mildly toxic to cats. Common signs include sleepiness, vomiting, diarrhea.

Is melatonin toxic to dogs?

Yes — melatonin is mildly toxic to dogs. Common signs include sleepiness, vomiting, diarrhea.

Which parts of melatonin are toxic?

Gummies, tablets.

What makes melatonin toxic?

Melatonin; xylitol in some products.

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